package operation;

import book.Book;
import book.BookList;

import java.util.Scanner;

/**
 * Created by xiebang
 * Description
 * User:小谢
 * Date:2021-12-23
 * Time:20:39
 */
public class DelOpearation implements IOPearation{
    @Override
    public void work(BookList bookList) {
        System.out.println("删除图书");
        Scanner scanner = new Scanner(System.in);

        System.out.println("请输入删除图书的名字!");
        String name = scanner.nextLine();


        int size = bookList.getUsedSize();
        int pos = -1;
        for (int i = 0; i < size; i++) {
            Book book1 = bookList.getBook(i);
            if (book1.getName().equals(name)){
                pos = i;
                break;
            }
        }
        if (pos != -1){
            //开始删除
            for (int i = pos; i <size - 1 ; i++) {
                bookList.setBooks(i,bookList.getBook(i+1));

            }
            bookList.setUsedSize(size - 1);
            System.out.println("删除成功!");
            return;
        }
        System.out.println("删除失败!");
    }
}
